What was found
AIRCRAFT WAS GROUNDED, AN EMERGENCY WAS DECLARED AND ACFT RETURNED TO IND, DUE TO NR 1 ENGINE LOW OIL QUANITY AND LOW OIL PRESSURE INDICATION. FLIGHT CREW MANUALLY SHUT DOWN THE NR 1 ENGINE. ACFT LANDED SAFELY WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND AN OIL PUDDLE UNDER THE NR 1 ENGINE AND THE OIL TANK SIGHT GAUGE EMPTY. DURING A REVIEW OF THE DFDR DATA, IT WAS NOTED THAT THE ENGINE WENT PAST THE TIME AND OIL PRESSURE LIMITS ALLOWED BY THE MANUAL AND ENGINE REQUIRES REPLACEMENT. MAINTENANCE REPLACED THE NR 1 ENGINE IAW TASK CARD 26L40072001.